Difference between revisions of "Concave polygon"

(New page: http://mathforum.org/sum95/math_and/poly/concave_w_segment.gif/ Picture of Concave Polygon A '''concave polygon''' is a polygon that has an "opening" in it. (a.k.a, there are two ...)
 
 
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[[http://mathforum.org/sum95/math_and/poly/concave_w_segment.gif/ Picture of Concave Polygon]]
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[[Image:concave_polygon.png|right|thumb|400px]]
  
A '''concave polygon''' is a [[polygon]] that has an "opening" in it. (a.k.a, there are two points, A, and B, in the interior such that a portion of [[segment]] AB is not in the boundary of the polygon.)
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A '''concave polygon''' is a [[polygon]] that has an "opening" in it. In other words, there are two points, A, and B, in the interior of the polgon such that a portion of [[segment]] <math>\overline{AB}</math> is not in the boundary of the polygon. A concave polygon has at least one [[reflex angle]], or an angle that is greater than <math>180^{\circ}</math>.
  
 
== See also ==
 
== See also ==
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[[Category:Definition]]
 
[[Category:Definition]]
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[[Category:Geometry]]

Latest revision as of 22:31, 5 January 2008

Concave polygon.png

A concave polygon is a polygon that has an "opening" in it. In other words, there are two points, A, and B, in the interior of the polgon such that a portion of segment $\overline{AB}$ is not in the boundary of the polygon. A concave polygon has at least one reflex angle, or an angle that is greater than $180^{\circ}$.

See also

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